1139946695 has 16 divisors (see below), whose sum is σ = 1414748160. Its totient is φ = 881241504.

The previous prime is 1139946659. The next prime is 1139946697. The reversal of 1139946695 is 5966499311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1139946695 - 2²² = 1135752391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139946697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12137 + ... + 49266.

It is an arithmetic number, because the mean of its divisors is an integer number (88421760).

Almost surely, 2^1139946695 is an apocalyptic number.

1139946695 is a deficient number, since it is larger than the sum of its proper divisors (274801465).

1139946695 is an equidigital number, since it uses as much as digits as its factorization.

1139946695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61534.

The product of its digits is 1574640, while the sum is 53.

The square root of 1139946695 is about 33763.0966441172. The cubic root of 1139946695 is about 1044.6276444795.

The spelling of 1139946695 in words is "one billion, one hundred thirty-nine million, nine hundred forty-six thousand, six hundred ninety-five".